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(NdModeL) J. G. BEALE 82; J. A. ARMSTRONG.

AUTOMATIC PRESSURE REGULATOR. No. 337,918. Patented Mar. 16, 1886.

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UNITED S'raras PATENT OFFICE.

JOSEPH G. BEALE AND JOHN A. ARMSTRONG, OF LEEOHBURG, PA.

AUTOMATIC PRESSURE-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 337,918, dated March16, 1886.

Application filed January 25, 1886. Serial No. 159,714.

To all whom it may concern:

Be it known that we, J osnrrr G. BEALE and JOHN A. ARMSTRONG, citizensof the United States, residing at Leechburg, in the county of Armstrongand State of Pennsylvania, have invented a new and useful Improvement inAutomatic Pressure-Regulating Apparatus; and we hereby declare thefollowing to be a full, clear, and exact description thereof, referencebeing had to the drawings, forming a part of the same, in which- Figure1 is a side elevation with the pipes and valves in section. Fig. 2 is afull side view of same.

The natural gas escapes from the earth at a pressure varying from zeroto five hundred pounds to the square inch, while its economic use canonly be secured at a pressure of from one to sixteen ounces to thesquare inch, and it is absolutely necessary that the pressure beuniform, whatever its energy may be.

This invention is designed to reduce the pressure of gas to a uniformstandard by the automatic action of the apparatus.

The invention consists in connecting a valve with machinery capable ofopening and 010s ing the valve by the automatic action of the gasWhenever the pressure shall fall below or rise above a certain givendegree, whereby a Varying high pressure may be reduced to a uniform lowpressure by the automatic action of the apparatus.

In the drawings, A represents the pipe where the gas enters, B where itpasses out. 0 is the regulating-valve; D, the regulatingchamber. E isthe connecting-rod; F, the lever-stand; G, the lever; H, theregulatingweight. M are the top and bottom of the regulating chamber. Jis the connectingpipe. K is a stop-cock. M is the wire that binds therubber cylinder to the top and bottom of the regulating-chamber.

In the construction of our apparatus the stop-valve K may be omitted, asit is not an essential element, its office being to stop the flow of gasat any pressure when the gas is not needed.

The apparatus may be made by the use of any kind of valves, but we shalldescribe its construction in connection with the common plug-valve, O,which may be connected as (No model.)

shown in Fig. 2, or the valve may be connected with gas-pipe in theusual manner, with a T at J. The bottom frame, 1', is screwed onto thebranch-pipe J. This frame 1' has an oval edge. A rubber pipe, 1), isdrawn overit and the end tightly wrapped with wire to the bottom, asshown at M. A top frame, i, is put in place and the gum cylinder drawnover the edge and tightly fastened with wire. The lever G, weight H, andconnecting-rod E are then put in place, and the apparatus is ready foruse.

When the apparatus has been so constructed and A is connected with thesupply and B connected with the discharge, the valve 0 being adjusted tobe nearly closed, the rubber cylinder stands upright, as shown in thedrawings. The gas entering at A at a pressure of one hundred pounds tothe inch, it passes through the valve 0, and fills the regulatingchamber D. The weight H being adjusted at sixteen ounces, as soon asseventeen ounces of pressure enters the regulator the gum stretches andthe lever g is pushed up and the connectingrod E closes the valve 0 andthe gas is shut off. At the instant the pressure runs down to sixteenounces the weight H forces the cylinder D down and the valve 0 is againopened, and thus any given pressure can be secured by adjusting theweight H, when the automatic action of the machine will open and closethe "alve so as to secure any desired pressure without furtherattention.

The advantages of our invention are that it is simple, cheap, andreliable, as no gas escapes by working the apparatus, and as theregulating-chamber is made of rubber or other elastic flexible materialthere is nothing to get out of order.

WVhat we claim as our invention is- 1. In an automaticpressure-regulator, the combination, with a gas-main having a valve, ofa flexible chamber located outside of the pipe, and a lever mounted onthe chamber and connected with the valve, whereby when said chamber isexpanded ,the lever will be raised and the valve closed, as set forth.

2. In an automatic pressure-regulator, the combination, with a gas-mainand a valve therein, of a flexible chamber located outside the main andcommunicating therewith,

thereto and connected with the flexible cham- 10 her, a movable weighton the lever, a rod, E,

pivoted to the lever and connected with the valve, as set forth. 1

JOSEPH G. BEALE. JOHN A. ARMSTRONG.

Witnesses:

J. R. ANDERSON, F. J. Bnnrn.

